body {
    margin: 0;
    font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB',
      'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
  }
  
  .el-table {
    margin-top: 20px;
  }
  
  h2 {
    color: #333;
    font-size: 20px;
    margin-bottom: 20px;
  }